Basf Aktiengesellschaft

Basf Se Corporation

Wolfgang Ahlers

Rocco Paciello

Michael Röper

Frank-Olaf Maehling

Ansgar Eisenbeis

Dieter Vogt

Klaus Ebel

Konrad Knoll

Sophia Ebert

Robert Baumann

Marcus Guzmann

Hartwig Voss

Thomas Gessner

Irene Troetsch-Schaller

Thomas Mackewitz

Andreas Fechtenkoetter

Martin Volland

Rainer Papp

Peter Hofmann

Michael Bartsch

Oliver Bey

Christos Vamvakaris

Heiko Maas

Frank Haese

Michael Slany

Wolfgang Richter

Edgar Zeller

Rüdiger Sens

Xavier Sava

Dag Wiebelhaus

Jürgen Stephan

Oliver Löber

Ansgar Schäfer

Volker Böhm

Daniel C M Warth

Alison Hewat

Jarl Ivar Van Der Vlugt

Lidcay Herrera Taboada

The use is described of polymers which contain, in copolymerized form, an &#x3b1;-olefin, a vinyl ester and an ester of an &#x3b1;,&#x3b2;-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.

Fuel oil compositions with improved cold flow properties

The present invention relates to a process for the hydroformylation of ethylenically unsaturated compounds by reaction with carbon monoxide and hydrogen in the presence of a catalytically active fluid which comprises a dissolved metal complex of a metal of transition group VIII of the Periodic Table of the Elements with at least one phosphoramidite compound as ligand, wherein the fluid is brought into contact with a base.

Stabilization of hydroformylation catalysts based on phosphoramide ligands

The invention relates to a method for the continuous production of aldehydes by the isomerising hydroformylation in a homogenous phase of olefin compositions by means of a synthesis gas, in the presence of a homogeneous rhodium catalyst that is complexed with an organophosphorus ligand containing oxygen atoms and/or nitrogen atoms and a free ligand. The production is carried out at high temperature and high pressure in a multi-stage reaction system consisting of at least two reaction zones. According to the method, the olefin composition is first reacted in a first reaction zone or a group of several first reaction zones at a total pressure of between 10 and 40 bar, using a synthesis gas with a CO/Hmolar ratio of between 4:1 and 1:2 until a 40 to 95% conversion of the &#x3b1;-olefins is obtained.

Method for the continuous production of aldehydes

Pnicogen chelate compounds which have two pnicogen-containing groups joined to one another via a xanthene-like or triptycene-like molecular skeleton and in which at least one pyrrole group is covalently bound via its nitrogen atom to each pnicogen atom form complexes with metals of transition group VIII which are useful as catalysts for the hydroformylation of olefins.

Ligands for pnicogen chelate complexes with a metal of subgroup VIII and use of the complexes as catalysts for hydroformylation, carbonylation, hydrocyanation or hydrogenation

The invention relates to a method for producing dialdehydes and/or ethylenically unsaturated monoaldehydes by reacting at least one compound with at least two ethylenically unsaturated double bonds with carbon monoxide and hydrogen in the presence of a hydroformylating catalyst with at least one complex of a metal of subgroup VIII. The subgroup comprises at least pnicogen chelate ligands.

Method for producing dialdehydes and or ethylenically unsaturated monoaldehydes by hydroformylating ethylenically unsaturated compounds

The invention relates to phosphacyclohexanes of general formulae I and II, wherein the following designations, among others, apply: R can represent hydrogen, C-alkyl, C-aralkyl, C-alkaryl, and C-aryl: Rto Rcan independently represent hydrogen, C-alkyl, C-aralkyl, C-alkaryl, and C-aryl: W, W' can independently represent single bonds or bridges comprising 1 to 20 carbon atoms, which can form part of a cyclic or aromatic group and can be interrupted by heteroatoms. Said phosphacyclohexanes are used as ligands in transition metal complexes of transition metals belonging to groups VIII to X of the periodic table.

Phosphacyclohexanes and the use thereof in the hydroformylation of olefins

Novel compounds of phosphorus, of arsenic and of antimony can be used as ligands to form complexes of metals of transition group VIII which can be used in catalysts for hydroformylation, hydrocyanation, carbonylation, hydrogenations, oligomerization and polymerization of olefins and for metathesis.

Phosphor, arsenic and antimony compounds based upon diaryl-anellated bicyclo[2.2.n] parent substances and catalysts containing same

In a process for the hydroformylation of ethylenically unsaturated compounds, at least one complex of a metal of transition group VIII. with at least one phosphorus-, arsenic- or antimony-containing compound as ligand is used as hydroformylation catalyst, where the compound used as ligand in each case comprises two groups which comprise a P, As or Sb atom and at least two further hetero atoms and are bound to a xanthene-like molecular framework. New compounds of this type and catalysts which comprise at least one complex of a metal of transition group VIII. with at least one such compound as ligand are also provided.

Method for hydroformylation, xanthene-bridged ligands and catalyst comprising a complex of said ligands

A catalyst comprising at least one complex of a metal of transition group VIII comprising at least one monodentate, bidentate or multidentate phosphinamidite ligand in which the phosphorus atom and the oxygen atom of the phosphinamidite group form part of a 5- to 8-membered heterocycle can be used for the hydroformylation and hydrocyanation of compounds containing at least one ethylenically unsaturated double bond. The phosphinamidite ligand is, for example, represented by the following formulaewhereinrepresents an optionally substituted 5- to 8-membered heterocycle wherein A represents carbon ring members;represents an optionally substituted N-bonded heterocycle wherein (Het) indicates optional ring heteroatoms in addition to the N; and

Catalyst comprising a metal complex of the VIII subgroup based on a phosphine amidite ligand and its utilization for hydroformylation and hydrocyanation

Metal complex carrying a 2-phospa-tricyclo&lsqb;3.3.1.1(3.7)&rsqb;decyl radical as a ligand in hydroformylation

Process for the preparation of aldehydes

Ethylenically unsaturated compounds are hydroformylated in the presence of a hydroformylation catalyst comprising at least one complex of a metal of transition group VIII with at least one phosphorus-containing compound as ligand, where this compound contains two groups which contain P atoms and are bound to a molecular skeleton derived from bisphenol A.

Hydroformylation catalyst comprising a complex with ligands having a structure derived from bisphenol A

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Worms, Germany

Wolfgang Ahlers